Axminster loom rope stop motion



Dec. 20, 19.38.

F. DARIENZO AXMINSTER LOOM ROPE -STOP MOTION Filed Sept. 14, 1937 y 2Sheets-Sheet l INVENTOR l @$.55 vm-vn ATTORNEY I Dec. 20, 1938.VFpDARlENzo AXMINSTER LOOM ROPE STOP MOTION 2 Sheets-Sheet 2 Filed Sepi.14, 1937 INVENTOR i v r am (-Dx (am www v ATTORNE Patented Dee. 2o, 19382,140,189

UNITED STATES PATENT OFFICE AXMINSTER LOOM ROPEV STOP MOTION FrankDarienzo, Amsterdam, N. Y., assigner to Bigelow-Sanford Carpet Co.,Inc., Thompsonville, Conn., a corporation of Massachusetts ApplicationSeptember 14, 1937, Serial No. 163,792 2 Claims. (Cl. 139-336) Thisinvention relates to Axminster looms and which winder the rope 9 windsand unwinds, as particularly to novel mechanism for stopping theindicated, to reciprocate the needle into and out loom automaticallywhen the needle reciprocatof the shed. All of the foregoing mechanisming rope breaks. is of the usual character in AXminster looms and In AXminster looms it is customary to insert Arequires no furtherdescriptionas it forms no 5 the weft by a needle which is reciprocated into part ofthe present invention. and out of the shed by a rope or similar iiexibleA starting lever I5 connects the loom to a suitdriver, power-driven bybeing wound about an able source of power. The lever illustratedtypioscillating drum or scroll. Breakage of the rope fies any desiredform of starting and stopping 10 while the loom is running is notunusual, reelement, such as a clutch lever, a belt shifting 10 sultingin breakage of the loom, damage to the lever, an electric switch leveror push button, fabric and possible injury to the operative. or otherelement, as desired. When a lever is The object of the present inventionis to proused, as shown, it may be guided between its vide mechanism tostop the loom automatically full line on position and its dotted lineoff upon such rope breakage and to that end, as will position by aslotted bracket I1 having a notch l5 appear, I provide a followerengaging the rope i9 adapted to hold the lever in its "on posiandpreferably tensioning the same, which foltion. The spring 2I indicatesthat the element lower may be o ne of the pulleys commonly emis shiftedto its orf position automatically when ployed to guide the rope, soconnected by linkage it is moved out of the notch I9. Any other type Ato the starting lever as to stop the loom autoof starting element may,of course, be used. 20 matically when the rope breaks. My novel stop Inthe embodiment of my invention illustrated mechanism may also desirablyoperate to take in Fig. 1, the pulley II is rotatably mounted on up theslack as the rope stretches during use a shaft formed on one end of abar 21 which and to stop the loom automatically when the is pivoted tothe frame of the machine at 29.

25 stretch has become excessive, indicative that the A spring 3i,attached at 33 to the frame of the 25 rope should be replaced. machineand at 35 to the bar 21 yieldingly urges These and further objects andadvantages of the bar in a clockwise direction about pivot 29, myinvention will appear from a more detailed as viewed in Fig. 1, and thismovement is limited description thereof, taken with accompanying by anelongated slot 3l in a bracket 39 attached drawings, in which: to theloom frame, into which slot projects the 30 Fig. 1 is a perspective viewof a needle drive end of shaft 25, as shown. having my DOVel all'OIIletCSOD meehailism em- The end of bar 21 opposite that formed into bodiedtherein; the shaft 25 carries, pivotally secured to it at Fig. 2 is anelevation View, partly in Section, 4I, a tie rod 43, secured at 45 to alug 41 (Fig. 2) teken 0n the line 2 2 0f Fg- 15 projecting from a hub 49rotatably mounted on 35 Fig- 3 iS en eleVatOIl View, Similar i0 Fig. 1,a stud shaft 50. The hub 49 carries a projectof a modified form of myinvention; and ing linger 5I adapted to bear downwardly on a Fig. 4 is avertical section on the line 4 4 rod 53 projecting from a rotatablymounted hub of Fig. 3. 55. The hub also carries a projecting arm 51 40My invention may be embodied in any loom engaging the handle of thestarting lever I5 and 40 of the Axminster .type in which the weft isinadapted to move the same out of the notch I9 serted by a needle,reciprocated by a rope or as indicated in dotted lines in Fig. 2. otherflexible driver. Such weft inserting mech- With the mechanismconstructed as above deanism is illustrated diagrammatically in Fig. 1scribed, it is apparent that during the normal wherein the weft I,unwound from a suitable running of the loom the pulley II tensions the45 Supply package, paSSeS through the eye of a neerope 9 by reason ofthe spring 3| urging clockdle 3 Slidably leCeiVeCl and guided by theneedle Wise rotation of the bar 21 as viewed in Fig. 1. rail 5. Theneedle iS Connected by bracket 'I If the rope should break, the bar 21will swing to a flexible driver 9 which may be e IOpe, Chain, about thepivot 29 in the amount permitted by or the like, in this instance arope, guided about the elongated slot 31, thus, through tie rod 43, 50 apulley Il near the shed and another similar rotating hub 49 and movingfinger 5I and rod 53 pulley (not shown) at the opposite end of thedownwardly. The resultant movement of arm 51 needle rail. The rope isreciprocated by an osmoves lever I5 out of notch I9 and spring 2Icillating drum or scroll Winder I0, driven from (Fig. 1) immediatelyshifts the lever to its 01T 55 the loom shaft by mechanism, notshown-about position, thereby stopping the loom. 55

As a modification of the preferred form of my invention which has beendescribed above, I have disclosed in Figs. 3 and 4 a construction which,by employing an auxiliary pulley, obviates the necessity for a specialmounting for the main pulley In Fig. 3 the pulley la, around which rope9a runs, may be mounted in a fixed bearing in the customary manner. Theauxiliary pulley is indicated at |03 and, as shown in Fig. 4, thispulley is preferably mounted beneath the lower course of rope 9a on ashaft |01 pivoted at |09 to a bracket depending from the loom frame. Aweight or spring l2, attached to an extension of shaft |81, urgesclockwise rotation of the shaft about pivot |09 and the oppositeextremity of the shaft is received in an elongated slot formed inbracket adapted to guide and to limit the vertical swinging movement ofshaft |01 about pivot |09.

A link ||3, loosely mounted on shaft |01, is pivoted at 45a to a lug 41aprojecting from a hub 49a rotatably mounted on stud shaft 50a, thearrangement being identical with the similarly numbered parts in thepreferred embodiment illustrated in Fig. 1. Hub 49a similarly carries afinger 5|a which operates through arm 51a to shift lever |5a out of itsnotch and to its off position through the influence of spring 2| just asin the preferred embodiment above described.

It will be noted that in both embodiments of my invention abovedescribed, the follower or pulley which actuates the stop mechanism whenthe rope breaks, also so applies tension to the rope as to take up theslack as the rope stretches during use. If desired, that feature of myinvention may be dispensed with, particularly where a non-stretchingdriver, such as a chain, is employed. However, it is a desirable featurewhere a stretchable driver is used and it will be noted that with such aconstruction the loom will be stopped automatically when the stretch hasbecome excessive, indicative that the rope should be discarded.

It will be apparent to those skilled in loom construction that otherlinkage of a similar nature may readily be employed to connect afollower engaging the needle driving rope with mechanism adapted toconnect and disconnect the loom with a source of power. Whereas I havefound that the embodiments illustrated are best adapted for my purposeyet my invention is not to be limited thereto or to any other detailsset forth herein except as indicated in the appended claims.

I claim:

l. In an Axminster loom, the combination with a weft inserting needle, aflexible driver for reciprocating the same into and out of the shed anda starting element adapted to start and to stop the loom, of a movablymounted member having a follower engaging the driver so that movement isimparted to the member when the driver breaks and linkage connecting thesaid member directly to the starting element so that the said movementof the member is imparted through the linkage to the starting elementwhereby to stop the loom automatically and immediately upon breakage ofthe driver.

2. In an Axrninster loom, the combination of a weft inserting needle, aflexible driver for reciprocating they same into and out of the shed, aneedle rail guiding the needle during its reciprocation, a pulley ateach end of the needle rail around which the driver passes, a pivotallymounted bracket supporting one of said pulleys, means yieldingly urgingrotation of said bracket about its pivot to tension the driver as itpasses about said pulley, a starting element adapted to start and tostop the loom, means releasably holding the element in its on positionto run the loom, and linkage connecting said bracket with the startingelement to release the latter and stop the loom automatically when thedriver breaks.

FRANK DARIENZO.

